在太阳能电池生产、制作与研究的过程中，太阳能模拟器都是必不可少的一环。其主要职能是为太阳能电池在实验室内的可重复测试提供稳定且接近于太阳光谱的光照。为了达到这一目的，国际电工委员会（IEC）在三个方面对太阳能模拟器提出了要求，包括光谱、稳定性以及均匀性，并做为了A、B以及C三个等级的划分。而在以上三个方面均达到A级的太阳模拟器，造价都比较高。在低成本的基础上，本项目旨对实现太阳能模拟器的光谱、稳定性以及均匀性展开研究。研究的内容主要包括光路，光源以及稳定控制系统三个模块，通过本项目的实施旨在实现符合IEC标准要求的AAA级太阳能模拟器。

In process of solar cell production, fabrication, and research, solar simulator is one of the necessary parts. Its main function is to provide illumination which is stable and has a similiar spectrum with solar for reproducible solar cell measurement in laboratory. For the purpose, International Electrotechnical Commission (IEC) makes three reqirements for solar simulators, including spectrum, stability and illumination uniformity, and further classify them into level A, B, and C. For solar simulators reaching three A, it generally has a high cost. Based on low cost, this project aims to study spectrum, stability and illumination uniformity of solar cell. Three modules are included in the research, that is light path, light source and stablization control system, and implementation of the project aims to devolop a solar simulator meeting AAA requirement of IEC standard.